The Linkchecker Highlight module will highlight links determined to be broken by the Linkchecker module so that broken links can be easily found in large blocks of text.
Color codes:
Default: White on gray
-110 (Connection timeout): White on gray
0 (Server not found): White on red
301 (Moved): White on blue
403 (Forbidden): Red on black
404 (Page not found): White on red
Highlight colors can be customized simply by adding classes to your theme's CSS files, like so:
.broken-link-0 {
color: black;
background: orange;
}
You can see how highlighted links will look by going to admin/help/linkchecker_highlight
Pending a response from the module maintainter, this module is planned to be integrated into the Linkchecker module. See http://drupal.org/node/1802556